Do you have power ( batt +12vdc) at the underhood fuse block? There is a #6 AWG black lead that brings power from the battery up to the underhood fuse block. Check with a voltmeter at the jump start terminal (under square red cap) for power. If you have power at the jump start terminal, remove the horn fuse and check for power on the supply side of the fuse socket. Establish that you have power available up there underhood. There are many variables & possibilities, trying to start with some basics. From what location did you hear the pop when plugging tv into rear outlet? With the info you posted it appears that there is no power at the front end. Try to post a few more details if you can.
2003 SSEi, Light Bronzemist Metallic - All Stock For Now
IBEW Local 261 Groton, CT
My other vehicle is a nuclear submarine.